bpo-33641: Convert RFC references into links. (GH-7103)


85% of them are already links.
(cherry picked from commit 0a36ac1a09587735237c5978ebd046313922869c)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
diff --git a/Doc/library/urllib.error.rst b/Doc/library/urllib.error.rst
index 5517b04..f7d47ed 100644
--- a/Doc/library/urllib.error.rst
+++ b/Doc/library/urllib.error.rst
@@ -41,8 +41,7 @@
 
    .. attribute:: code
 
-      An HTTP status code as defined in `RFC 2616
-      <http://www.faqs.org/rfcs/rfc2616.html>`_.  This numeric value corresponds
+      An HTTP status code as defined in :rfc:`2616`.  This numeric value corresponds
       to a value found in the dictionary of codes as found in
       :attr:`http.server.BaseHTTPRequestHandler.responses`.